Good effort,however you would have been better starting wallpapering at
that
point,that way you would have got a pefectly lined up pattern on its
corners.

Thanks for all your comments. It seems that there is no really satisfactory
way of doing this. Why did they go to all the bother of plastering the wall
this way. In the 30's I think that most walls would have been papered. It
is beautifully done but ......